Barrel heater



Jan. 15, 1924. 1,480,981

W. H. BARTON BARREL HEATER Filed March 6. 1922 INVENTOR ATTO'RNEY Patented Jan. 15, 1924.

U *11 S at hr WILLIAM H. BARTON, OF SPRINGFIELD, MISSOURI, ASSIGNOR TO ASH GROVE LIME 85 PORTLAND CEMENT (70., OF KANSAS CITY, MISSOURI, A CORPORATION OF MAINE.

BARREL HEATER.

Application filed March 6, 1922. Serial No. 541,460.

To all whom it may concern:

Be it known that I, WILLIAM H. BARTON, a citizen of .the United States, residing at Springfield, in the county of Greene and State of Missouri, have invented certain new and useful Improvements in Barrel Heaters and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to-the figures of reference marked thereon, which form a part of this specification.

This invention relates to barrel heaters and the primary object of the invention is to provide a simple, novel, easily constructed barrel heater in which the barrels may pass through an elongated heating chamber in communication with a Source of heat supply at one end and in communication with a stack or flue at the other end; The device is so constructed that the barrels enter a heating or drying chamber at a point distant from the inlet for the heated gases and leave the heating or drying chamber immediately after they have been subjected to the maximum heat.

The heated gases, after contacting with the barrels, will pass off through the stack or flue.

It is an important feature of my invention that the heated gases come in contact both with the interior and exterior of the barrels and in order to insure the introduction of the gases into the barrels, I prefer to invert them as they pass through the heating chamber.

The novel construction of the invention will be more particularly understood by reference to the following description in connection with the accompanying draw ings, in which- Fig. 1 is a longitudinal, horizontal, sectional view through a barrel heater constructed in accordance with my invention.

Fig. 2 is a vertical, longitudinal. sectional view through the furnace, through part of the heating chamber and through part of the stack, and

Fig. 3 is an end view of the barrel heater adjacent to the stack.

I prefer to construct the barrel heater of masonry and to this end the vertical walls 1 and 2 of the drying chamber may consist of masonry, reinforced concrete or the like, and the top of the walls may be connected by a roof or cover 3 of appropriate construction and the ends may be provided with sets a and 5 of swinging doors having counterbalance weights' 6 and 7 connected to them, passing over suitable pulleys so that when the doors 4: swing inwardly to admit the barrels, the counterbalance weights will bring them back to closing position, and when the doors 5 swing outwardly, their counter weights will bring them back to closing position.

The wall 1 not only serves as one of the vertical Walls for the heating chamber but part of it constitutes a side wall for the furnace or combustion chamber, the other side wall 8 being connected at the rear to the wall 1 by cross wall 9. The front wall 10 of the furnace is provided with a fuel door 11 and an ash pit door 12, the latter being beneath the grate 13.

At the rear end of the grate 13 and spaced from the wall 9 is a fire wall l hwhich terminates below the roof 15 of the furnace, the space between the fire wall 1 1 and the rear wall 9 of the furnace constituting a duct 16 through which the burnt gases or products of combustion may pass, the duct having a discharge port 17 which discharges into the heating chamber 18 at the lower part of the rear end thereof.

Running longitudinally of the chamber 18 are ways or guide rails 19 and 20, which are spaced close enough together to support the barrels 21. The rails may, in turn, carry ournal boxes 22 and 23, in which are mounted shafts 24 and 25 carrying sprocket wheels-26 and 27 around which an endless chain 28 may pass. v

Motion can be communicated to the chain from any suitable source as, for example, by a sprocket 29 on the shaft 25. The chain is provided with outwardly projecting lugs or dogs 30, which extend upwardly when the chain is above the rails 19 and 20 so that the lugs can engage the chine or inner walls of the ends of the inverted barrels to move them along the rails or guides 19 and 20 from the front to the rear of the heating chamber 18. The barrels may be fed onto the chain in any convenient manner, either by independent conveyors or by being placed thereon by hand.

By reference to Figs. 1 and 2 it will be observed that the gases entering through the port 17 may completely fill the drying chamber as they pass from the rear to the front thereof preparatory to exhausting "through the port 31 communicating with the stack or flue 32. It will be observed that part of the Wall 2 constitutes part of the wall for the stack 32 and that the stack is at the front end of the drying chamber. Therefore, as the barrels move from right to left and as they first enter the drying chamber, the initial moisture will be taken off by the gases entering the stack so that the barrels just prior to passing out of the drying chamber will be subjected to heated air or gas practically devoid of moisture, which is desirable for the final drying.

Attention is also called to the fact that the device is inexpensively and conveniently constructed, that the inlet doors at the front enclof the drier will open inwardly and the outlet doors will open outwardly, and that as the barrels pass between them, they will automatically close due to the counter weights.

Attention is further called to the fact that in the construction shown, the entire inner and outer surface of each barrel is subjected to uniform heat treatment so that there will beuniform drying of the barrel throughout.

What I claim and desire to secure by Letters Patent is:

In a barrel heater, an elongated heating chamber having openings in its opposite ends and having ports in its opposite sides adjacent opposite ends of the chamber and below the level of the end openings, a combustion chamber in communication with one of said ports, a flue in communication with the other of said ports, automatically closing, swinging doors for the end openings, spaced rails extending through said chamber above the level of said ports, means at the ends of the chamber for supporting a conveyor belt, and a conveyor belt supported by said means and extending through the chamber between said rails.

In testimony whereof I affix my signature.

WILLIAM H. BARTON. 

